According to Jaden Korr's visions that first led him to the frozen moon, the escaped clones may have been cloned from Mara Jade, Lassin, or Lumiya. These figures appeared in the vision along with Kam Solusar, the source for the clone Alpha. Palpatine was also mentioned by one of the Doctors' holorecordings. They may also have been cloned from other Force users known to the Galactic Empire prior to Thrawn's death.